BACK UP SLIDES Vikas S Singhal, V VECC, I INDIA KOLKATA Grid - - PowerPoint PPT Presentation
KOLKATA Grid Tier-2 Centre BACK UP SLIDES Vikas S Singhal, V VECC, I INDIA KOLKATA Grid Tier-2 Centre AliEn + LCG services WMS JA File catalogue JA JA SE LFN GUID Meta CM data LCG CE CE Job CREAM FTD TaskQueue CE Manager
KOLKATA Grid Tier-2 Centre Vikas S Singhal, V VECC, I INDIA
BACK UP SLIDES
KOLKATA Grid Tier-2 Centre
Jobs TaskQueue Job Broker Job Manager CE
JA
Central services Site services
Splitting Expired Priorities Merging Zombies
Job optimizers File catalogue
LFN GUID Meta data
SE
Packman MonALISA
JA JA
CE SE
Packman MonALISA FTD FTD
Site A Site B CM LCG services
Proxy renewal BDII CREAM CE LCG CE WMS
KOLKATA Grid Tier-2 Centre 3
CERN Global Redirector Redirector
(Head Node)
Data Servers
A B C
go to C
e n f i l e X Who has file X?
Kolkata Storage Redirctor sees all servers as xrootd data servers All storages are on WAN
2nd open X go to C Redirectors Cache file location
Global redirector (not in picture) – intra-site storage collaboration
KOLKATA Grid Tier-2 Centre
950Mbps Bandwidth Between Kolkata and Kolkata-cream
KOLKATA Grid Tier-2 Centre
Developing Monitoring software with ALICE-Grid team. Developed LCG VOBOX test suite for SAM environment with
proper documentation.
SAM Monitoring Test Suite Successfully implemented and
running since 2007.
Developed VOBOX test for Nagios Monitoring environment. Implemented on the actual system and running in Testing Mode. Cream Test Suite is under development.
Vikas S Singhal, V VECC, I INDIA
KOLKATA Grid Tier-2 Centre
Do Cabling in proper manner. Label the cables. Make a logical diagram. Temporarily things will harmful for maintenance. Proper cabling help many folds to debug the problem. Use different Netmask (Different network zone) will reduce packet broadcasting. ping, traceroute, etc command will help to find out the network or cabling related problem . Remove KVM from each individual server and try to manage remotely.
KOLKATA Grid Tier-2 Centre Vikas S Singhal, V VECC, I INDIA
GRID site should run Successfully. GRID site should be UP and Running. GRID site availability and reliability should be more than 99%. GRID site should perform as per SLAs. GRID site should provide local computing power to Tier3 users.